SRPK1

gene
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Also known as SFRSK1

Summary

SRPK1 (SRSF protein kinase 1, HGNC:11305) is a protein-coding gene on chromosome 6p21.31, encoding SRSF protein kinase 1 (Q96SB4). Serine/arginine-rich protein-specific kinase which specifically phosphorylates its substrates at serine residues located in regions rich in arginine/serine dipeptides, known as RS domains and is involved in the phosphorylation of SR splicing factors and the regulation of splicin….

This gene encodes a serine/arginine protein kinase specific for the SR (serine/arginine-rich domain) family of splicing factors. The protein localizes to the nucleus and the cytoplasm. It is thought to play a role in regulation of both constitutive and alternative splicing by regulating intracellular localization of splicing factors. Alternative splicing of this gene results in multiple transcript variants. Additional alternatively spliced transcript variants have been described for this gene, but their full length nature have not been determined.

Source: NCBI Gene 6732 — RefSeq curated summary.

At a glance

  • GWAS associations: 4
  • Clinical variants (ClinVar): 83 total
  • Druggable target: yes — 24 molecules with ChEMBL bioactivity
  • MANE Select transcript: NM_003137

Identifiers

Gene identifiers

FieldValue
HGNC IDHGNC:11305
Approved symbolSRPK1
NameSRSF protein kinase 1
Location6p21.31
Locus typegene with protein product
StatusApproved
AliasesSFRSK1
Ensembl geneENSG00000096063
Ensembl biotypeprotein_coding
OMIM601939
Entrez6732

Gene structure

Transcript identifiers

Ensembl transcripts: 22 — 15 protein_coding, 4 retained_intron, 2 nonsense_mediated_decay, 1 protein_coding_CDS_not_defined

ENST00000346162, ENST00000361690, ENST00000373821, ENST00000373825, ENST00000423325, ENST00000502969, ENST00000505885, ENST00000507292, ENST00000507909, ENST00000508473, ENST00000510290, ENST00000512445, ENST00000513367, ENST00000876560, ENST00000876561, ENST00000876562, ENST00000876563, ENST00000926028, ENST00000926029, ENST00000926030, ENST00000952658, ENST00000952659

RefSeq mRNA: 1 — MANE Select: NM_003137 NM_003137

CCDS: CCDS47415

Canonical transcript exons

ENST00000373825 — 16 exons

ExonStartEnd
ENSE000020267643583296635835488
ENSE000034698103592046835920528
ENSE000035053483587256335872728
ENSE000035109633585726135857368
ENSE000035282243587093435870959
ENSE000035478763587028135870494
ENSE000035909343592104435921098
ENSE000035962363588672435886811
ENSE000036362473584253535842604
ENSE000036384663583833735838429
ENSE000036471763586948235869901
ENSE000036557793587423335874339
ENSE000036609943586901035869110
ENSE000036694053588881535888923
ENSE000036840433589089535891013
ENSE000037379153588802435888111

Expression profiles

Bgee: expression breadth ubiquitous, 289 present calls, max score 96.46.

FANTOM5 (CAGE): breadth ubiquitous, TPM avg 47.8840 / max 914.1612, expressed in 1818 samples.

FANTOM5 promoters (3 alternative TSS)

Promoter IDTPM avgSamples expressed
7332939.49561816
733287.49421678
733300.8941568

Top tissues by expression

295 total, by Bgee expression score (0-100, higher = more expressed):

TissueAnatomy IDExpression scoreQuality
spermCL:000001996.46gold quality
cartilage tissueUBERON:000241896.09gold quality
colonic epitheliumUBERON:000039796.00gold quality
trabecular bone tissueUBERON:000248395.62gold quality
cervix squamous epitheliumUBERON:000692295.59gold quality
bone marrowUBERON:000237194.90gold quality
upper leg skinUBERON:000426294.80gold quality
secondary oocyteCL:000065594.61gold quality
endothelial cellCL:000011594.59gold quality
mucosa of sigmoid colonUBERON:000499394.56gold quality
bloodUBERON:000017894.44gold quality
bone marrow cellCL:000209294.36gold quality
colonic mucosaUBERON:000031794.32gold quality
male germ cellCL:000001594.16gold quality
penisUBERON:000098994.15gold quality
male germ line stem cell (sensu Vertebrata) in testisCL:0000089 ∩ UBERON:000047394.07gold quality
rectumUBERON:000105294.04gold quality
cortical plateUBERON:000534393.95gold quality
tonsilUBERON:000237293.51gold quality
oocyteCL:000002393.05gold quality
mammalian vulvaUBERON:000099792.95gold quality
pigmented layer of retinaUBERON:000178292.34gold quality
pharyngeal mucosaUBERON:000035592.04gold quality
primordial germ cell in gonadCL:0000670 ∩ UBERON:000099191.94gold quality
squamous epitheliumUBERON:000691491.94gold quality
duodenumUBERON:000211491.80gold quality
gingival epitheliumUBERON:000194991.77gold quality
cervix epitheliumUBERON:000480191.51gold quality
jejunal mucosaUBERON:000039991.41gold quality
ganglionic eminenceUBERON:000402391.30gold quality

Single-cell (SCXA)

Detected in 2 experiment(s), a significant marker in 2.

ExperimentMarker?Max mean expression
E-MTAB-8410yes392.39
E-ANND-3yes11.37

Regulation

Is transcription factor: no

Upstream regulators (CollecTRI, top): WT1

miRNA regulators (miRDB)

158 targeting SRPK1, top 30 by miRDB confidence (max_score; target_count = how many genes the miRNA targets in total — lower means more specific):

miRNAMax scoreAvg scoremiRNA target_count
HSA-MIR-1252-5P100.0069.802774
HSA-MIR-5196-5P100.0067.982761
HSA-MIR-4747-5P100.0067.902681
HSA-MIR-3646100.0073.565283
HSA-MIR-5692A100.0074.406850
HSA-MIR-3613-3P100.0076.367965
HSA-MIR-9-5P100.0072.282361
HSA-MIR-186-5P99.9970.833707
HSA-MIR-548C-3P99.9974.017587
HSA-MIR-607799.9968.042299
HSA-MIR-3692-3P99.9870.272139
HSA-MIR-520D-5P99.9873.344883
HSA-MIR-524-5P99.9873.434882
HSA-MIR-314899.9775.066478
HSA-MIR-493-5P99.9672.472382
HSA-MIR-570-3P99.9672.414910
HSA-MIR-23A-3P99.9574.243163
HSA-MIR-23B-3P99.9574.243163
HSA-MIR-23C99.9573.923192
HSA-MIR-6508-5P99.9270.672465
HSA-MIR-497-5P99.9271.832674
HSA-MIR-568099.9169.833421
HSA-MIR-15A-5P99.9072.802787
HSA-MIR-15B-5P99.9072.782798
HSA-MIR-16-5P99.9072.802780
HSA-MIR-195-5P99.9072.812805
HSA-MIR-106A-5P99.9073.942683
HSA-MIR-627-3P99.9071.423316
HSA-MIR-345-3P99.8970.231421
HSA-MIR-17-5P99.8973.832665

Literature-anchored findings (GeneRIF, showing 40)

  • Both SRPK1 and SRPK2 are most likely the cellular protein kinases mediating HBV core protein phosphorylation during viral infection and therefore represent important host cell targets for therapeutic intervention in HBV infection. (PMID:12134018)
  • negative role of SRPK1 and SRPK2 in the regulation of HBV replication through a mechanism not involving the phosphorylation of the core protein (PMID:16122776)
  • ASF/SF2 is phosphorylated by SRPK1 and Clk/Sty (PMID:16223727)
  • We describe crystallographic, molecular dynamics, and biochemical results that shed light on how SRPK1 preserves its constitutive active conformation. (PMID:17223538)
  • Serine-arginine protein kinase 1 overexpression is associated with tumorigenic imbalance in mitogen-activated protein kinase pathways. (PMID:17332336)
  • SRPK1 binding is associated with phosphorylation of human papillomavirus type 1 E1/E4 polypeptide and modulates autophosphorylation of the kinase. (PMID:17360743)
  • Sky1p utilizes the same docking groove to bind yeast SR-like protein Gbp2p and phosphorylates all three serines present in a contiguous RS dipeptide stretch (PMID:17517895)
  • These studies reveal that SRPK1 docks near the C-terminus of the RS1 segment of ASF protein and then moves in an N-terminal direction along the RS domain. (PMID:18155240)
  • Data show that a sliding docking interaction is essential for sequential and processive phosphorylation of an SR protein by SRPK1. (PMID:18342604)
  • Data show that adaptable molecular interactions guide phosphorylation of the SR protein ASF/SF2 by SRPK1. (PMID:18687337)
  • SRPK1, a ubiquitously expressed SR protein-specific kinase, directly binds to the cochaperones Hsp40/DNAjc8 and Aha1, which mediate dynamic interactions of the kinase with the major molecular chaperones Hsp70 and Hsp90 in mammalian cells (PMID:19240134)
  • while local RS/SR content steers regional preferences in the RS domain, distal contacts with SRPK1 guide initiation and directional phosphorylation within these regions. (PMID:19477182)
  • These results indicate that ICP27 RGG box methylation regulates interaction ALY and SRPK1 proteins. (PMID:19553338)
  • The enzymatic activity of SR protein kinases 1 and 1a is negatively affected by interaction with scaffold attachment factors B1 and 2. (PMID:19674106)
  • Our results demonstrate that SRPK1 and SRPK2 are host factors essential for Hepatitis C virus replication. (PMID:20498328)
  • SRPK1a may play an important role in linking ribosomal assembly and/or function to erythroid differentiation in human leukaemic cells (PMID:20708644)
  • protein kinase SRPK1 phosphorylates ~10 serines in the arginine–serine-rich domain (RS domain) of the SR protein SRSF1 in a C- to N-terminal direction, a modification that directs this essential splicing factor from the cytoplasm to the nucleus (PMID:21728354)
  • The present immunohistochemical study reveals a region- and neuron-specific localization of SRPK1 in human brain. (PMID:22019390)
  • WT1 bound to the SRPK1 promoter, and repressed expression through a specific WT1 binding site (PMID:22172722)
  • These findings reveal a major signal transduction pathway for regulated splicing and place SRPKs in a central position in the pathway, consistent with their reputed roles in a large number of human cancers. (PMID:22727668)
  • positively regulates IFN-lambda1 genes during viral infection (PMID:23405030)
  • SRPK1 plays an oncogenic role in hepatocellular carcinoma through a possible mechanism involving PI3K/Akt. (PMID:23644876)
  • The data establish a new view of SRSF1 protein regulation in which SRPK1 and CLK1 partition activities based on Ser-Pro versus Arg-Ser placement rather than on N- and C-terminal preferences along the RS domain. (PMID:23707382)
  • Data suggest that the conformation of SRPK1 is highly flexible and can readily adapt to changes in structure of arginine-serine rich domains in substrate proteins such as SRSF1 (serine-arginine-rich splicing protein 1). (PMID:24074032)
  • Increased expression of SRPK1 correlates with the progression of breast cancer.SRPK1 is upregulated in breast cancer at both mRNA and protein levels. (PMID:24961466)
  • The data show that the RS domain in SRSF1 is multifunctional and that sequences once thought to be catalytically silent can be recruited to enhance the efficiency of SR protein phosphorylation. (PMID:24984036)
  • Hypoxic stress decreased the miR-9 level in ARPE-19 cells, which increased the transcriptional level of SRPK-1, resulting in alternative splicing shift to pro-angiogenic isoforms of VEGF165 in human retinal pigment epithelial cells. (PMID:25007957)
  • Inhibition of SRPK1 by knockdown or with pharmacological inhibitors reduces expression of pro-angiogenic forms of VEGF. (PMID:25010863)
  • Up-regulation of SRPK1 is associated with breast cancer. (PMID:25140042)
  • Collectively, these data suggest that human papillomavirus type 1 E1;E4-mediated inhibition of SRPK1 could affect the functions of host serine-arginine proteins and those of the virus transcription/replication regulator E2. (PMID:25142587)
  • Authors show that MNK regulates SRPK via mTOR and AKT. (PMID:25187540)
  • ERK1/2 signal induced MNK catalytic activity enabled enterovirus type 1 internal ribosomal entry site-mediated translation/host cell cytotoxicity through negative regulation of the Ser/Arg (SR)-rich protein kinase (SRPK). (PMID:25187541)
  • Modulation of SRPK1 and subsequent inhibition of tumour angiogenesis. (PMID:25381816)
  • Data suggest that proline phosphorylation by CLK1/CDC-like kinase 1 (but not by SRPK1/serine/arginine-rich splicing factor kinase 1) regulates conformation and alternative splicing function of SFRS1 (serine/arginine-rich splicing factor 1). (PMID:25529026)
  • SRPK1 was highly expressed in basal breast cancer. High SRPK1 expression correlated with poor breast cancer disease outcome and preferential metastasis to the lungs and brain. (PMID:25774502)
  • SRPK1 may be a potential anticancer target to inhibit glioma progression. (PMID:25833691)
  • SRPK1 is a regulator of Tra2beta1 splicing function and individual domains engage in considerable cross-talk, assuming novel functions with regard to RNA binding, splicing, and catalysis. (PMID:26013829)
  • SRPK1 mediates TGF-beta-induced proliferation. (PMID:26099172)
  • SRPK1 is overexpressed in HCC and may be a promising indicator of prognosis for HCC patients (PMID:26201897)
  • Data indicate serine/arginine-rich protein kinases SRPK1/2/SRPIN340 complexes by molecular docking and molecular dynamics. (PMID:26244849)

Cross-species orthologs

12 orthologs

OrganismSymbolGene ID
danio_reriosrpk1bENSDARG00000031560
mus_musculusSrpk1ENSMUSG00000004865
rattus_norvegicusSrpk1ENSRNOG00000000511
drosophila_melanogasterCG8565FBGN0030697
drosophila_melanogasterSRPKFBGN0286813
caenorhabditis_elegansWBGENE00002187
caenorhabditis_elegansWBGENE00002188
caenorhabditis_elegansWBGENE00004055
caenorhabditis_elegansWBGENE00004056
caenorhabditis_elegansWBGENE00004980
caenorhabditis_elegansgskl-2WBGENE00007977
caenorhabditis_elegansY106G6E.1WBGENE00013705

Paralogs (19): MAPK9 (ENSG00000050748), MAPK6 (ENSG00000069956), MOK (ENSG00000080823), NLK (ENSG00000087095), MAPK1 (ENSG00000100030), MAPK3 (ENSG00000102882), MAPK8 (ENSG00000107643), MAPK10 (ENSG00000109339), MAK (ENSG00000111837), MAPK14 (ENSG00000112062), CILK1 (ENSG00000112144), SRPK2 (ENSG00000135250), MAPK4 (ENSG00000141639), MAPK13 (ENSG00000156711), MAPK7 (ENSG00000166484), MAPK15 (ENSG00000181085), SRPK3 (ENSG00000184343), MAPK11 (ENSG00000185386), MAPK12 (ENSG00000188130)

Protein

Protein identifiers

SRSF protein kinase 1Q96SB4 (reviewed: Q96SB4)

Alternative names: SFRS protein kinase 1, Serine/arginine-rich protein-specific kinase 1

All UniProt accessions (7): Q96SB4, D6RB98, D6RBF8, D6RBM8, D6RDZ3, H0Y932, H3BLV9

UniProt curated annotations — full annotation on UniProt →

Function. Serine/arginine-rich protein-specific kinase which specifically phosphorylates its substrates at serine residues located in regions rich in arginine/serine dipeptides, known as RS domains and is involved in the phosphorylation of SR splicing factors and the regulation of splicing. Plays a central role in the regulatory network for splicing, controlling the intranuclear distribution of splicing factors in interphase cells and the reorganization of nuclear speckles during mitosis. Can influence additional steps of mRNA maturation, as well as other cellular activities, such as chromatin reorganization in somatic and sperm cells and cell cycle progression. Isoform 2 phosphorylates SFRS2, ZRSR2, LBR and PRM1. Isoform 2 phosphorylates SRSF1 using a directional (C-terminal to N-terminal) and a dual-track mechanism incorporating both processive phosphorylation (in which the kinase stays attached to the substrate after each round of phosphorylation) and distributive phosphorylation steps (in which the kinase and substrate dissociate after each phosphorylation event). The RS domain of SRSF1 binds first to a docking groove in the large lobe of the kinase domain of SRPK1. This induces certain structural changes in SRPK1 and/or RRM2 domain of SRSF1, allowing RRM2 to bind the kinase and initiate phosphorylation. The cycles continue for several phosphorylation steps in a processive manner (steps 1-8) until the last few phosphorylation steps (approximately steps 9-12). During that time, a mechanical stress induces the unfolding of the beta-4 motif in RRM2, which then docks at the docking groove of SRPK1. This also signals RRM2 to begin to dissociate, which facilitates SRSF1 dissociation after phosphorylation is completed. Isoform 2 can mediate hepatitis B virus (HBV) core protein phosphorylation. It plays a negative role in the regulation of HBV replication through a mechanism not involving the phosphorylation of the core protein but by reducing the packaging efficiency of the pregenomic RNA (pgRNA) without affecting the formation of the viral core particles. Isoform 1 and isoform 2 can induce splicing of exon 10 in MAPT/TAU. The ratio of isoform 1/isoform 2 plays a decisive role in determining cell fate in K-562 leukemic cell line: isoform 2 favors proliferation where as isoform 1 favors differentiation. Phosphorylates the N-terminus of ERC1.

Subunit / interactions. Monomer. Isoform 2 is found in a multisubunit complex containing seven proteins, named toposome, which separates entangled circular chromatin DNA during chromosome segregation. Isoform 2 interacts with DNAJC8 and AHSA1/AHA1 and this mediates formation of a complex with the Hsp70 /Hsp90 machinery. Isoform 1 is found in a complex with: DHX9, MOV10, MATR3, HNRNPU, NCL, DDX21, HSD17B4, PABPC1, HNRNPM, IGF2BP1, SYNCRIP, RPL3, VIM, YBX1, NPM1, HNRNPA2B1, HNRNPC, RPLP0, RPL7A and RALY. Isoform 2 binds to IGF2BP1, SYNCRIP, HNRNPA2B1 and HNRNPC. Isoform 1 and isoform 2 interact with SAFB which inhibits its activity. Isoform 2 interacts with SAFB2 which inhibits its activity. Interacts (via kinase domain) with ERC1 (via N-terminus); the interaction is direct and may be involved in SRPK protein localization. (Microbial infection) Isoform 2 interacts with HHV-1 ICP27 protein.

Subcellular location. Cytoplasm. Nucleus. Nucleus matrix. Microsome Cytoplasm. Nucleoplasm. Nucleus speckle. Chromosome.

Tissue specificity. Isoform 2 is predominantly expressed in the testis but is also present at lower levels in heart, ovary, small intestine, liver, kidney, pancreas and skeletal muscle. Isoform 1 is only seen in the testis, at lower levels than isoform 2. Highly expressed in different erythroid and lymphoid cell lines, with isoform 2 being far more abundant than isoform 1.

Activity regulation. Activated by phosphorylation on Ser-51 and Ser-555.

Miscellaneous. Due to intron retention.

Similarity. Belongs to the protein kinase superfamily. CMGC Ser/Thr protein kinase family.

Isoforms (3)

UniProt IDNamesCanonical?
Q96SB4-22yes
Q96SB4-31, 1a
Q96SB4-43

RefSeq proteins (1): NP_003128* (*=MANE)

Domains & families (InterPro)

IDNameType
IPR000719Prot_kinase_domDomain
IPR008271Ser/Thr_kinase_ASActive_site
IPR011009Kinase-like_dom_sfHomologous_superfamily
IPR017441Protein_kinase_ATP_BSBinding_site
IPR051334

Pfam: PF00069

Catalyzed reactions (Rhea), 2 shown:

  • L-seryl-[protein] + ATP = O-phospho-L-seryl-[protein] + ADP + H(+) (RHEA:17989)
  • L-threonyl-[protein] + ATP = O-phospho-L-threonyl-[protein] + ADP + H(+) (RHEA:46608)

UniProt features (68 total): helix 21, strand 10, mutagenesis site 7, modified residue 5, compositionally biased region 5, sequence conflict 4, turn 4, binding site 3, region of interest 3, splice variant 2, chain 1, domain 1, active site 1, sequence variant 1

Structure

Experimental structures (PDB)

12 structures.

PDBMethodResolution (Å)
5NNGX-RAY DIFFRACTION1.2
5MY8X-RAY DIFFRACTION1.7
1WAKX-RAY DIFFRACTION1.73
5MXXX-RAY DIFFRACTION1.75
4WUAX-RAY DIFFRACTION2
7DD1X-RAY DIFFRACTION2.05
7PQSX-RAY DIFFRACTION2.2
7ZKSX-RAY DIFFRACTION2.28
5XV7X-RAY DIFFRACTION2.32
1WBPX-RAY DIFFRACTION2.4
6FADX-RAY DIFFRACTION2.8
3BEGX-RAY DIFFRACTION2.9

Predicted structure (AlphaFold)

ModelpLDDTFraction very-high
AF-Q96SB4-F171.650.51

Functional residue map

Curated UniProt residues grouped by drug-discovery relevance — catalytic, ligand-binding, modification, and mutation-validated positions. Source: UniProtKB sequence features.

Catalytic / active sites (1): 213 (proton acceptor)

Ligand- & substrate-binding residues (3): 86–94; 109; 166–168

Post-translational modifications (5): 51, 309, 311, 333, 555

Mutagenesis-validated functional residues (7):

PositionPhenotype
37no effect on protein phosphorylation.
51protein phosphorylation impaired at this position.
222no effect on protein phosphorylation.
311no effect on protein phosphorylation.
436no effect on protein phosphorylation.
555protein phosphorylation impaired at this position.
619no effect on protein phosphorylation.

Function

Pathways and Gene Ontology

Reactome pathways

11 pathways

IDPathway
R-HSA-9694631Maturation of nucleoprotein
R-HSA-9821993Replacement of protamines by nucleosomes in the male pronucleus
R-HSA-1266738Developmental Biology
R-HSA-1643685Disease
R-HSA-5663205Infectious disease
R-HSA-9679506SARS-CoV Infections
R-HSA-9694516SARS-CoV-2 Infection
R-HSA-9694635Translation of Structural Proteins
R-HSA-9772573Late SARS-CoV-2 Infection Events
R-HSA-9816359Maternal to zygotic transition (MZT)
R-HSA-9824446Viral Infection Pathways

MSigDB gene sets: 278 (showing top): MORF_DNMT1, MODULE_52, BORCZUK_MALIGNANT_MESOTHELIOMA_UP, RODRIGUES_THYROID_CARCINOMA_ANAPLASTIC_UP, AAGCAAT_MIR137, TGCGCANK_UNKNOWN, MORF_BUB1, TGCTGCT_MIR15A_MIR16_MIR15B_MIR195_MIR424_MIR497, GOBP_NEGATIVE_REGULATION_OF_VIRAL_PROCESS, GOBP_POSITIVE_REGULATION_OF_VIRAL_GENOME_REPLICATION, SHAFFER_IRF4_TARGETS_IN_ACTIVATED_B_LYMPHOCYTE, GOBP_MALE_GAMETE_GENERATION, TTGCWCAAY_CEBPB_02, CEBPB_01, OUELLET_OVARIAN_CANCER_INVASIVE_VS_LMP_UP

GO Biological Process (13): spliceosomal complex assembly (GO:0000245), protein phosphorylation (GO:0006468), chromosome segregation (GO:0007059), RNA splicing (GO:0008380), sperm DNA condensation (GO:0035092), intracellular signal transduction (GO:0035556), positive regulation of viral genome replication (GO:0045070), negative regulation of viral genome replication (GO:0045071), innate immune response (GO:0045087), regulation of mRNA splicing, via spliceosome (GO:0048024), regulation of mRNA processing (GO:0050684), mRNA processing (GO:0006397), cell differentiation (GO:0030154)

GO Molecular Function (10): magnesium ion binding (GO:0000287), RNA binding (GO:0003723), protein kinase activity (GO:0004672), protein serine/threonine kinase activity (GO:0004674), ATP binding (GO:0005524), protein serine kinase activity (GO:0106310), nucleotide binding (GO:0000166), protein binding (GO:0005515), kinase activity (GO:0016301), transferase activity (GO:0016740)

GO Cellular Component (10): chromatin (GO:0000785), nucleus (GO:0005634), nucleoplasm (GO:0005654), cytoplasm (GO:0005737), cytosol (GO:0005829), plasma membrane (GO:0005886), nuclear matrix (GO:0016363), nuclear speck (GO:0016607), chromosome (GO:0005694), endoplasmic reticulum (GO:0005783)

Reactome top-level categories

Rollup of top-9 pathways:

CategoryPathways
Translation of Structural Proteins1
Maternal to zygotic transition (MZT)1
Disease1
Viral Infection Pathways1
SARS-CoV Infections1
Late SARS-CoV-2 Infection Events1
SARS-CoV-2 Infection1
Developmental Biology1
Infectious disease1

GO top-level categories

Rollup of top GO terms by namespace:

CategoryTerms
cellular anatomical structure5
mRNA splicing, via spliceosome2
RNA processing2
intracellular anatomical structure2
viral genome replication2
regulation of viral genome replication2
protein kinase activity2
intracellular membrane-bounded organelle2
nuclear lumen2
cytoplasm2
protein-RNA complex assembly1
phosphorylation1
protein modification process1
cell cycle process1
chromatin organization1
spermatid nucleus differentiation1
signal transduction1
positive regulation of viral process1
negative regulation of viral process1
immune response1
defense response to symbiont1
regulation of RNA splicing1
regulation of mRNA processing1
mRNA processing1
regulation of mRNA metabolic process1
mRNA metabolic process1
cellular developmental process1
metal ion binding1
nucleic acid binding1
kinase activity1
phosphotransferase activity, alcohol group as acceptor1
catalytic activity, acting on a protein1
adenyl ribonucleotide binding1
purine ribonucleoside triphosphate binding1
nucleoside phosphate binding1
heterocyclic compound binding1
binding1
transferase activity, transferring phosphorus-containing groups1
catalytic activity1
chromosome1

Protein interactions and networks

STRING

2774 interactions, top by confidence (×1000):

Protein AProtein BPartner UniProtScore
SRPK1SRSF1Q07955949
SRPK1DDX23Q9BUQ8922
SRPK1SRSF2Q01130881
SRPK1HNRNPCP07910775
SRPK1HSPA4P34932770
SRPK1SRSF5Q13243770
SRPK1DHX9Q08211730
SRPK1DDX21Q9NR30721
SRPK1AHSA1O95433717
SRPK1SRSF9Q13242701
SRPK1SRSF6Q13247685
SRPK1LUC7L3O95232684
SRPK1DNAJB1P25685681
SRPK1SNRNP70P08621678
SRPK1TRA2BP62995669

IntAct

384 interactions, top by confidence:

ABTypeScore
RNPS1SRPK1psi-mi:“MI:0915”(physical association)0.840
SRPK1RNPS1psi-mi:“MI:0915”(physical association)0.840
DDX21HNRNPCpsi-mi:“MI:0915”(physical association)0.750
SRPK1Npsi-mi:“MI:0217”(phosphorylation reaction)0.710
SRPK1Npsi-mi:“MI:0407”(direct interaction)0.710
SNRPD2GEMIN2psi-mi:“MI:0914”(association)0.710
PTK2TGFB1I1psi-mi:“MI:0914”(association)0.680
U2AF1U2AF2psi-mi:“MI:0914”(association)0.670
SRSF1SRPK1psi-mi:“MI:0915”(physical association)0.670
SRPK1SRSF1psi-mi:“MI:0915”(physical association)0.670
DGCR8SRPK1psi-mi:“MI:0915”(physical association)0.670
DHX8AHCYL1psi-mi:“MI:0914”(association)0.640
SNRNP70GEMIN2psi-mi:“MI:0914”(association)0.640
SRPK1SNRPCpsi-mi:“MI:0914”(association)0.640
SRPK1YTHDC1psi-mi:“MI:0915”(physical association)0.570
YTHDC1SRPK1psi-mi:“MI:0915”(physical association)0.570
SRPK1SNRPD3psi-mi:“MI:0915”(physical association)0.560
SNRNP70GTPBP1psi-mi:“MI:0914”(association)0.530
MAGEB2POLRMTpsi-mi:“MI:0914”(association)0.530
LUC7L2CASC3psi-mi:“MI:0914”(association)0.530
RBM34NVLpsi-mi:“MI:0914”(association)0.530
SRPK2RRP9psi-mi:“MI:0914”(association)0.530
SRPK1DROSHApsi-mi:“MI:0914”(association)0.530
HDGFL2CDC7psi-mi:“MI:0914”(association)0.530
RBMX2WDR46psi-mi:“MI:0914”(association)0.530

BioGRID (656): CHTOP (Affinity Capture-MS), YBX3 (Affinity Capture-MS), DDX5 (Affinity Capture-MS), EWSR1 (Affinity Capture-MS), FUS (Affinity Capture-MS), HNRNPM (Affinity Capture-MS), ILF3 (Affinity Capture-MS), RPL37 (Affinity Capture-MS), SRRM2 (Affinity Capture-MS), ALYREF (Affinity Capture-MS), WIBG (Affinity Capture-MS), TP53 (Two-hybrid), SAFB (Two-hybrid), SRPK1 (Reconstituted Complex), SRPK1 (Affinity Capture-Western)

ESM2 similar proteins: A0AUV4, A0JM98, A1A5Q6, A2KF29, B1WAS2, C0HKC8, C0HKC9, O60285, O70551, O88866, P51957, P57058, P57059, Q2T9U5, Q4R9F7, Q5R7G9, Q5RD27, Q5REX1, Q5XHI9, Q60670, Q641K5, Q66HE5, Q68UT7, Q6IFT4, Q6P3R8, Q6REY9, Q6VZ17, Q80VH0, Q8BI55, Q8BLD6, Q8BZN4, Q8C0N0, Q8C0V7, Q8C0X8, Q8CFH6, Q8NE63, Q8TF76, Q96SB4, Q9H093, Q9H0K1

Diamond homologs: B0Y8Y4, B8Y466, O54781, O70551, P78362, Q03563, Q45FA5, Q4WW94, Q5RD27, Q5UQ24, Q61IS6, Q93VK0, Q96SB4, Q9UPE1, Q9Z0G2, A0A509AHB6, A8WJR8, B2MVY4, E2RTQ7, G5EBT1, G5EDB2, O35492, O35493, O43781, O59853, O76039, O93982, P11802, P14680, P14681, P30285, P32350, P35426, P36616, P46551, P49657, P49761, P51137, P51566, P51568

SIGNOR signaling

8 interactions.

AEffectBMechanism
SRPK1down-regulatesRBM8Aphosphorylation
SRPK1up-regulatesSRPK1phosphorylation
LIMK2“up-regulates activity”SRPK1phosphorylation
SRPK1“up-regulates activity”ARSFphosphorylation
SRPK1up-regulatesSRSF1phosphorylation

Enriched among interaction partners

Reactome pathways and GO biological processes over-represented among this gene’s 218 IntAct physical interaction partners (hypergeometric vs the genome-wide background, BH-FDR, gene-set size 15–500, ranked by fold). A functional readout of the neighbourhood — distinct from this gene’s own memberships above, and biased toward well-studied / hub proteins, so read it as themes rather than proof.

Reactome pathways:

PathwayPartnersFoldFDR
Metabolism of non-coding RNA520.3×7e-05
Transport of Mature Transcript to Cytoplasm717.1×3e-06
RNA Polymerase II Transcription Termination1216.9×3e-10
mRNA 3’-end processing1316.4×8e-11
SARS-CoV-2 modulates host translation machinery1014.3×4e-08
mRNA Polyadenylation2514.1×1e-19
mRNA Splicing2014.1×1e-15
mRNA Splicing - Minor Pathway912.9×6e-07

GO biological processes:

GO termPartnersFoldFDR
negative regulation of mRNA splicing, via spliceosome831.4×2e-08
mRNA splice site recognition728.8×4e-07
spliceosomal complex assembly824.7×1e-07
regulation of mRNA splicing, via spliceosome522.7×2e-04
spliceosomal snRNP assembly720.9×4e-06
U2-type prespliceosome assembly619.2×5e-05
cytoplasmic translation1716.1×2e-13
RNA splicing, via transesterification reactions516.0×9e-04

Disease & clinical

Clinical variants and AI predictions

ClinVar

83 variants total. Per-class counts are floors (≥ shown; pagination cap):

ClassificationCount (floor)
Pathogenic0
Likely pathogenic0
Uncertain significance62
Likely benign0
Benign1

Top pathogenic / likely-pathogenic (0)

SpliceAI

2647 predictions. Top by Δscore:

VariantEffectΔscore
6:35842530:CTCA:Cdonor_loss1.0000
6:35842531:TCACC:Tdonor_loss1.0000
6:35842532:CACCT:Cdonor_loss1.0000
6:35842533:A:ATdonor_loss1.0000
6:35842534:C:Adonor_loss1.0000
6:35842602:GGCC:Gacceptor_loss1.0000
6:35842603:GCC:Gacceptor_loss1.0000
6:35842604:CCTAA:Cacceptor_loss1.0000
6:35842605:C:CCacceptor_gain1.0000
6:35842605:CTAAA:Cacceptor_loss1.0000
6:35842606:T:Aacceptor_loss1.0000
6:35857364:TTGTG:Tacceptor_gain1.0000
6:35857369:C:CCacceptor_gain1.0000
6:35869003:AACTT:Adonor_loss1.0000
6:35869004:ACTT:Adonor_loss1.0000
6:35869005:CTTAC:Cdonor_loss1.0000
6:35869006:TTA:Tdonor_loss1.0000
6:35869007:TACCA:Tdonor_loss1.0000
6:35869008:A:ATdonor_loss1.0000
6:35869008:ACCAC:Adonor_gain1.0000
6:35869009:CCA:Cdonor_gain1.0000
6:35869009:CCACC:Cdonor_gain1.0000
6:35870956:CTGA:Cacceptor_gain1.0000
6:35870957:TGA:Tacceptor_gain1.0000
6:35870960:C:CCacceptor_gain1.0000
6:35886734:AACT:Adonor_gain1.0000
6:35888015:AATAC:Adonor_loss1.0000
6:35888016:ATAC:Adonor_loss1.0000
6:35888017:TAC:Tdonor_loss1.0000
6:35888018:AC:Adonor_loss1.0000

AlphaMissense

4329 scored. Top likely-pathogenic:

VariantProtein changeam_pathogenicity
6:35835341:G:TA644D1.000
6:35835349:T:AR641S1.000
6:35835349:T:GR641S1.000
6:35835350:C:GR641T1.000
6:35835395:A:GF626S1.000
6:35835420:A:GW618R1.000
6:35835420:A:TW618R1.000
6:35835427:C:AK615N1.000
6:35835427:C:GK615N1.000
6:35835437:A:GL612P1.000
6:35835437:A:TL612Q1.000
6:35835454:C:AW606C1.000
6:35835454:C:GW606C1.000
6:35835456:A:GW606R1.000
6:35835456:A:TW606R1.000
6:35835473:A:CI600S1.000
6:35835473:A:GI600T1.000
6:35835473:A:TI600N1.000
6:35835482:A:GL597P1.000
6:35835482:A:TL597Q1.000
6:35838405:A:GL572P1.000
6:35838407:T:AE571D1.000
6:35838407:T:GE571D1.000
6:35838408:T:AE571V1.000
6:35838409:C:TE571K1.000
6:35838420:G:TA567E1.000
6:35838426:T:GH565P1.000
6:35838427:G:CH565D1.000
6:35838428:A:CD564E1.000
6:35838428:A:TD564E1.000

dbSNP variants (sampled 300 via entrez): RS1000018594 (6:35854553 C>T), RS1000067290 (6:35867085 G>A), RS1000085400 (6:35905575 A>G), RS1000155573 (6:35850058 G>T), RS1000171513 (6:35851504 A>G), RS1000205613 (6:35848290 C>T), RS1000219672 (6:35854826 T>G), RS1000225752 (6:35893112 T>C), RS1000303821 (6:35915917 A>C), RS1000339316 (6:35836574 G>A), RS1000372448 (6:35886150 G>A), RS1000376761 (6:35841808 G>C), RS1000380871 (6:35911668 C>A), RS1000473893 (6:35880590 T>A,C), RS1000506677 (6:35900995 A>T)

Disease associations

OMIM: gene MIM:601939 | disease phenotypes:

GenCC curated gene-disease

Mondo (0):

Orphanet (0):

HPO phenotypes

0 total (0 of 0 shown, HPO-id order):

GWAS associations

4 associations (top):

StudyTraitp-value
GCST007355_3Antidepressant treatment resistance (> 2 drugs prescribed)4.000000e-07
GCST90002390_576Mean corpuscular hemoglobin2.000000e-35
GCST90002392_753Mean corpuscular volume5.000000e-34
GCST90002396_282Mean reticulocyte volume5.000000e-15

EFO canonical traits (2, from GWAS)

EFO IDTrait name
EFO:0004527mean corpuscular hemoglobin
EFO:0010701mean reticulocyte volume

Drugs & pharmacology

Drug and pharmacology data

Is drug target: yes

ChEMBL targets (1): CHEMBL4375 (SINGLE PROTEIN)

Molecules with ChEMBL bioactivity

24 molecules (phase ≥1), by development phase (incl. off-target/promiscuous compounds). Patent mentions across the top 20 by phase: 254,269 (via chembl_molecule»patent_compound — counts attach to the compound, not the gene–compound relationship, so off-target/promiscuous molecules can dominate).

MoleculeNamePhasePatents
CHEMBL1287853FEDRATINIB43,554
CHEMBL1289926AXITINIB415,732
CHEMBL1336SORAFENIB486,060
CHEMBL1738797ALECTINIB46,731
CHEMBL1789941RUXOLITINIB411,547
CHEMBL502835NINTEDANIB48,545
CHEMBL535SUNITINIB479,020
CHEMBL576982QUIZARTINIB44,432
CHEMBL601719CRIZOTINIB414,403
CHEMBL608533MIDOSTAURIN47,259
CHEMBL223360LINIFANIB33,925
CHEMBL483158ALISERTIB32,305
CHEMBL522892DOVITINIB34,944
CHEMBL603469LESTAURTINIB3
CHEMBL91829RUBOXISTAURIN377
CHEMBL1721885SU-0148132363
CHEMBL230011TG100-11521,504
CHEMBL362558LY-20903142108
CHEMBL475251R-4062762
CHEMBL572878TOZASERTIB22,998
CHEMBL1084546PF-005622711
CHEMBL1908397KW-24491
CHEMBL1980391RG-15301
CHEMBL482767SNS-3141

PharmGKB: 1 entry (VIP=true, CPIC=false)

GtoPdb / IUPHAR curated pharmacology

(IUPHAR/BPS Guide to Pharmacology — expert-curated)

Target class: enzyme — SRPK family

Most potent curated ligand interactions (1 total), top 1:

LigandActionAffinityParameter
compound 13 [PMID: 15925511]Inhibition7.4pIC50

Binding affinities (BindingDB)

46 measured of 47 human assays (47 total across all organisms); most potent 46 below. Values come from heterogeneous assays and are not directly comparable.

LigandMeasureValuePatent
StaurosporineKD1.7 nM
5-methyl-N-[2-[4-[(2-methylsulfanylpyrimidin-4-yl)methyl]piperazin-1-yl]-5-(trifluoromethyl)phenyl]furan-2-carboxamideIC501.9 nMUS-9695160: Piperazine derivatives for treating disorders
5-(oxan-4-yl)-N-[2-[4-(pyridin-2-ylmethyl)piperazin-1-yl]-5-(trifluoromethyl)phenyl]furan-2-carboxamideIC502.6 nMUS-9695160: Piperazine derivatives for treating disorders
N-[2-(4-benzylpiperazin-1-yl)-5-(trifluoromethyl)phenyl]-5-methylfuran-2-carboxamideIC504.4 nMUS-9695160: Piperazine derivatives for treating disorders
N-[2-(4-benzylpiperazin-1-yl)-5-(trifluoromethyl)phenyl]-5-pyridin-3-ylfuran-2-carboxamideIC504.6 nMUS-9695160: Piperazine derivatives for treating disorders
5-[3-(hydroxymethyl)phenyl]-N-[2-[4-(pyridin-2-ylmethyl)piperazin-1-yl]-5-(trifluoromethyl)phenyl]furan-2-carboxamideIC505 nMUS-9695160: Piperazine derivatives for treating disorders
5-pyridin-4-yl-N-[2-[4-(pyridin-4-ylmethyl)piperazin-1-yl]-5-(trifluoromethyl)phenyl]furan-2-carboxamideIC507.18 nMUS-9695160: Piperazine derivatives for treating disorders
5-pyridin-3-yl-N-[2-[4-(pyridin-2-ylmethyl)piperazin-1-yl]-5-(trifluoromethyl)phenyl]furan-2-carboxamideIC5013.5 nMUS-9796707: Piperazine derivatives for treating disorders
5-(1H-indol-5-yl)-N-[2-[4-(pyridin-2-ylmethyl)piperazin-1-yl]-5-(trifluoromethyl)phenyl]furan-2-carboxamideIC5013.9 nMUS-9796707: Piperazine derivatives for treating disorders
N-[2-(4-benzylpiperazin-1-yl)-5-(trifluoromethyl)phenyl]furan-2-carboxamideIC5014 nMUS-9695160: Piperazine derivatives for treating disorders
N-[2-(4-benzylpiperazin-1-yl)-5-(trifluoromethyl)phenyl]-5-pyridin-4-ylfuran-2-carboxamideIC5014.8 nMUS-9796707: Piperazine derivatives for treating disorders
N-[2-[4-(pyridin-2-ylmethyl)piperazin-1-yl]-5-(trifluoromethyl)phenyl]furan-2-carboxamideIC5016.6 nMUS-9796707: Piperazine derivatives for treating disorders
5-pyridin-4-yl-N-[2-[4-(pyridin-3-ylmethyl)piperazin-1-yl]-5-(trifluoromethyl)phenyl]furan-2-carboxamideIC5017 nMUS-9695160: Piperazine derivatives for treating disorders
SPHINX scaffold, 2IC5020 nM
SPHINX scaffold, 1IC5031 nM
SPHINX scaffold, 3IC5036 nM
5-methyl-N-[2-[4-(pyridin-2-ylmethyl)piperazin-1-yl]-5-(trifluoromethyl)phenyl]furan-2-carboxamideIC5038 nMUS-9695160: Piperazine derivatives for treating disorders
5-phenyl-N-[2-[4-(pyridin-2-ylmethyl)piperazin-1-yl]-5-(trifluoromethyl)phenyl]furan-2-carboxamideIC50111 nMUS-9695160: Piperazine derivatives for treating disorders
5-(hydroxymethyl)-N-[2-[4-(pyridin-2-ylmethyl)piperazin-1-yl]-5-(trifluoromethyl)phenyl]furan-2-carboxamideIC50119 nMUS-9695160: Piperazine derivatives for treating disorders
N-[2-[4-(1H-indol-3-ylmethyl)piperazin-1-yl]-5-(trifluoromethyl)phenyl]-5-pyridin-4-ylfuran-2-carboxamideIC50164 nMUS-9695160: Piperazine derivatives for treating disorders
5-(2-methoxy-4-pyridinyl)-N-[2-[4-(pyridin-2-ylmethyl)piperazin-1-yl]-5-(trifluoromethyl)phenyl]furan-2-carboxamideIC50170 nMUS-9695160: Piperazine derivatives for treating disorders
N-[2-[4-(pyrazin-2-ylmethyl)piperazin-1-yl]-5-(trifluoromethyl)phenyl]furan-2-carboxamideIC50183 nMUS-9695160: Piperazine derivatives for treating disorders
PKC-412KD190 nM
SPHINX31IC50300 nM
5-(6-methoxy-3-pyridinyl)-N-[2-[4-(pyridin-2-ylmethyl)piperazin-1-yl]-5-(trifluoromethyl)phenyl]furan-2-carboxamideIC50323 nMUS-9695160: Piperazine derivatives for treating disorders
N-[2-[4-[(4-methoxyphenyl)methyl]piperazin-1-yl]-5-(trifluoromethyl)phenyl]-5-pyridin-4-ylfuran-2-carboxamideIC50336 nMUS-9695160: Piperazine derivatives for treating disorders
SPHINXIC50440 nMUS-9695160: Piperazine derivatives for treating disorders
N-[2-(4-methylpiperazin-1-yl)-5-(trifluoromethyl)phenyl]-5-phenyl-1H-imidazole-2-carboxamideIC50493 nMUS-9695160: Piperazine derivatives for treating disorders
(3Z)-4-amino-5-fluoro-3-[5-(4-methylpiperazino)-1,3-dihydrobenzimidazol-2-ylidene]carbostyrilKD520 nM
N-[4-({4-[(3-methyl-1H-pyrazol-5-yl)amino]-6-(4-methylpiperazin-1-yl)pyrimidin-2-yl}sulfanyl)phenyl]cyclopropanecarboxamideKD1100 nM
N-[2-[4-[(3-methoxyphenyl)methyl]piperazin-1-yl]-5-(trifluoromethyl)phenyl]-5-pyridin-4-ylfuran-2-carboxamideIC501550 nMUS-9695160: Piperazine derivatives for treating disorders
5-[(Z)-(5-fluoranyl-2-oxidanylidene-1H-indol-3-ylidene)methyl]-2,4-dimethyl-N-[(2S)-3-morpholin-4-yl-2-oxidanyl-propyl]-1H-pyrrole-3-carboxamideKD2600 nM
1-Acyl-1H-[1,2,4]triazole-3,5-diamine Analogue 3bKD3100 nM
N-[2-(diethylamino)ethyl]-5-[(Z)-(5-fluoro-2-oxo-1,2-dihydro-3H-indol-3-ylidene)methyl]-2,4-dimethyl-1H-pyrrole-3-carboxamideKD3500 nM
N-[2-(4-benzylpiperazin-1-yl)-5-(trifluoromethyl)phenyl]-5-(1H-indol-5-yl)furan-2-carboxamideIC503510 nMUS-9695160: Piperazine derivatives for treating disorders
N-[2-(4-benzylpiperazin-1-yl)-5-(trifluoromethyl)phenyl]-5-phenylfuran-2-carboxamideIC504010 nMUS-9695160: Piperazine derivatives for treating disorders
2-phenyl-N-[2-[4-(pyridin-2-ylmethyl)piperazin-1-yl]-5-(trifluoromethyl)phenyl]-1,3-oxazole-5-carboxamideIC504030 nMUS-9695160: Piperazine derivatives for treating disorders
N-[2-(4-methylpiperazin-1-yl)-5-(trifluoromethyl)phenyl]thiophene-2-carboxamideIC504690 nMUS-9695160: Piperazine derivatives for treating disorders
3-phenyl-N-[2-[4-(pyridin-2-ylmethyl)piperazin-1-yl]-5-(trifluoromethyl)phenyl]-1,2,4-oxadiazole-5-carboxamideIC505310 nMUS-9695160: Piperazine derivatives for treating disorders
N-[2-[4-(pyridin-2-ylmethyl)piperazin-1-yl]-5-(trifluoromethyl)phenyl]-1H-1,2,4-triazole-5-carboxamideIC508410 nMUS-9695160: Piperazine derivatives for treating disorders
5-phenyl-N-[2-[4-(pyridin-2-ylmethyl)piperazin-1-yl]-5-(trifluoromethyl)phenyl]-1,3,4-oxadiazole-2-carboxamideIC5010000 nMUS-9695160: Piperazine derivatives for treating disorders
5-methyl-N-[2-[4-(pyridin-2-ylmethyl)piperazin-1-yl]-5-(trifluoromethyl)phenyl]-1,3-oxazole-2-carboxamideIC5010000 nMUS-9695160: Piperazine derivatives for treating disorders
5-methyl-N-[2-[4-(pyridin-2-ylmethyl)piperazin-1-yl]-5-(trifluoromethyl)phenyl]-1,3,4-oxadiazole-2-carboxamideIC5010000 nMUS-9695160: Piperazine derivatives for treating disorders
5-pyridin-4-yl-N-[2-[4-(pyridin-2-ylmethyl)piperazin-1-yl]-5-(trifluoromethyl)phenyl]-1,3,4-oxadiazole-2-carboxamideIC5010000 nMUS-9695160: Piperazine derivatives for treating disorders
5-phenyl-N-[2-[4-(pyridin-2-ylmethyl)piperazin-1-yl]-5-(trifluoromethyl)phenyl]-1,2,4-oxadiazole-3-carboxamideIC5010000 nMUS-9695160: Piperazine derivatives for treating disorders
5-pyridin-4-yl-N-[2-[4-(pyridin-2-ylmethyl)piperazin-1-yl]-5-(trifluoromethyl)phenyl]-1,2,4-oxadiazole-3-carboxamideIC5010000 nMUS-9796707: Piperazine derivatives for treating disorders

ChEMBL bioactivities

451 potent at pChembl≥5 of 455 total, top 50 by pChembl (potency: 10 = 0.1 nM, 6 = 1 µM).

pChemblTypeValueUnitMolecule
9.43IC500.37nMCHEMBL5930435
9.30IC500.5nMCHEMBL5965082
9.30IC500.5nMCHEMBL6029449
9.15IC500.7nMCHEMBL5934367
9.12IC500.76nMCHEMBL5917789
9.05IC500.884nMCHEMBL3747611
8.94IC501.15nMCHEMBL3747134
8.94IC501.15nMCHEMBL6170692
8.92IC501.2nMCHEMBL5909482
8.89IC501.3nMCHEMBL5990226
8.85IC501.4nMCHEMBL6018331
8.78IC501.68nMCHEMBL4468747
8.77IC501.7nMCHEMBL5811732
8.74IC501.8nMCHEMBL5906376
8.74IC501.8nMCHEMBL5750651
8.72IC501.9nMCHEMBL5894352
8.72IC501.91nMCHEMBL3746522
8.60IC502.53nMCHEMBL3747301
8.59IC502.6nMCHEMBL5918528
8.58IC502.61nMCHEMBL3746627
8.57IC502.7nMCHEMBL5085558
8.57IC502.66nMCHEMBL3746960
8.55IC502.8nMCHEMBL6018983
8.52IC503nMCHEMBL5085558
8.52IC503.01nMCHEMBL3747406
8.50IC503.18nMCHEMBL5074274
8.46IC503.5nMCHEMBL5996135
8.43IC503.7nMCHEMBL6031872
8.36IC504.4nMCHEMBL5908237
8.34IC504.6nMCHEMBL5878480
8.34IC504.6nMCHEMBL5856679
8.32IC504.75nMCHEMBL3747108
8.30IC505nMCHEMBL5749164
8.29IC505.09nMCHEMBL3746395
8.28IC505.3nMCHEMBL6029175
8.26IC505.5nMCHEMBL5847882
8.26Kd5.5nMSTAUROSPORINE
8.22IC506nMCHEMBL5074274
8.17IC506.7nMCHEMBL5930064
8.15IC507nMCHEMBL5439515
8.14IC507.18nMCHEMBL5904988
8.09IC508.2nMCHEMBL5755331
8.06IC508.8nMCHEMBL5996933
8.01IC509.7nMCHEMBL5782913
8.00Kd10nMLESTAURTINIB
7.97IC5010.7nMCHEMBL5803127
7.96IC5010.9nMCHEMBL5748071
7.96IC5011nMALECTINIB
7.95IC5011.3nMCHEMBL5906195
7.90IC5012.7nMCHEMBL5893054

PubChem BioAssay actives

94 with measured affinity, of 1598 total; 50 most potent distinct compounds. Largely complementary to BindingDB; screening values are coarse (µM, 4 dp), so sub-nM hits tie at the floor.

CompoundAssayTypeValueUnit
3-(3-cyano-9-ethyl-6,6-dimethyl-11-oxo-5H-benzo[b]carbazol-8-yl)benzenesulfonyl fluoride1968975: Inhibition of human SRPK1 using GRSRSRSRSR as substrate in presence of [gamma-33p]-ATP by radiometric hotspot kinase assayic500.0017uM
N-[3-[[[2-(5-chloro-4-fluoro-1H-benzimidazol-2-yl)pyrimidin-4-yl]amino]methyl]-2-pyridinyl]-N-methylmethanesulfonamide1968975: Inhibition of human SRPK1 using GRSRSRSRSR as substrate in presence of [gamma-33p]-ATP by radiometric hotspot kinase assayic500.0030uM
(2S,3R,4R,6R)-3-methoxy-2-methyl-4-(methylamino)-29-oxa-1,7,17-triazaoctacyclo[12.12.2.12,6.07,28.08,13.015,19.020,27.021,26]nonacosa-8,10,12,14,19,21,23,25,27-nonaen-16-one435936: Binding constant for full-length SRPK1kd0.0055uM
5-pyridin-4-yl-N-[2-[4-(pyridin-2-ylmethyl)piperazin-1-yl]-5-(trifluoromethyl)phenyl]furan-2-carboxamide1802550: In Vitro Kinase Screening Assay from Article 10.1021/acschembio.6b01048: “Development of Potent, Selective SRPK1 Inhibitors as Potential Topical Therapeutics for Neovascular Eye Disease.”ic500.0059uM
N-[3-[[[2-(6-chloro-4-fluoro-1H-benzimidazol-2-yl)pyrimidin-4-yl]amino]methyl]-2-pyridinyl]-N-methylmethanesulfonamide1968975: Inhibition of human SRPK1 using GRSRSRSRSR as substrate in presence of [gamma-33p]-ATP by radiometric hotspot kinase assayic500.0070uM
(15S,16S,18R)-16-hydroxy-16-(hydroxymethyl)-15-methyl-28-oxa-4,14,19-triazaoctacyclo[12.11.2.115,18.02,6.07,27.08,13.019,26.020,25]octacosa-1,6,8,10,12,20,22,24,26-nonaen-3-one508091: Binding affinity to SRPK1kd0.0100uM
5-methyl-N-[2-morpholin-4-yl-5-(trifluoromethyl)phenyl]furan-2-carboxamide1851164: Inhibition of SRPK1 (unknown origin) using SRSF1 Arg-Ser (RS) peptide (NH2-RSPSYGRSRSRSRSRSRSRSRSNSRSRSY-OH) as substrate incubated for 10 mins in presence of ATP by Kinase-Glo assayic500.0100uM
N-[3-[[[6-(6-chloro-1H-benzimidazol-2-yl)-2-pyridinyl]amino]methyl]-2-pyridinyl]-N-methylmethanesulfonamide1968975: Inhibition of human SRPK1 using GRSRSRSRSR as substrate in presence of [gamma-33p]-ATP by radiometric hotspot kinase assayic500.0150uM
N-[3-[[2-(6-chloro-1H-benzimidazol-2-yl)pyrrolo[2,3-d]pyrimidin-7-yl]methyl]-2-pyridinyl]-N-methylmethanesulfonamide1968975: Inhibition of human SRPK1 using GRSRSRSRSR as substrate in presence of [gamma-33p]-ATP by radiometric hotspot kinase assayic500.0150uM
N-[3-[[[5-bromo-2-(6-chloro-1H-benzimidazol-2-yl)pyrimidin-4-yl]amino]methyl]-2-pyridinyl]-N-methylmethanesulfonamide1968975: Inhibition of human SRPK1 using GRSRSRSRSR as substrate in presence of [gamma-33p]-ATP by radiometric hotspot kinase assayic500.0160uM
N-[3-[[[2-(4,6-difluoro-1H-benzimidazol-2-yl)pyrimidin-4-yl]amino]methyl]-2-pyridinyl]-N-methylmethanesulfonamide1968975: Inhibition of human SRPK1 using GRSRSRSRSR as substrate in presence of [gamma-33p]-ATP by radiometric hotspot kinase assayic500.0180uM
N-[2-(4-methylpiperazin-1-yl)-5-(trifluoromethyl)phenyl]-5-pyridin-4-ylfuran-2-carboxamide1802548: In Vitro Kinase Screening Assay from Article 10.1021/acschembio.6b01048: “Development of Potent, Selective SRPK1 Inhibitors as Potential Topical Therapeutics for Neovascular Eye Disease.”ic500.0200uM
N-[3-[[[2-(4-chloro-6-fluoro-1H-benzimidazol-2-yl)pyrimidin-4-yl]amino]methyl]-2-pyridinyl]-N-methylmethanesulfonamide1968975: Inhibition of human SRPK1 using GRSRSRSRSR as substrate in presence of [gamma-33p]-ATP by radiometric hotspot kinase assayic500.0220uM
N-[3-[[[2-(6-chloro-1H-benzimidazol-2-yl)pyrimidin-4-yl]-methylamino]methyl]-2-pyridinyl]-N-methylmethanesulfonamide1968975: Inhibition of human SRPK1 using GRSRSRSRSR as substrate in presence of [gamma-33p]-ATP by radiometric hotspot kinase assayic500.0240uM
N-[3-[[[2-(5,6-difluoro-1H-benzimidazol-2-yl)pyrimidin-4-yl]amino]methyl]-2-pyridinyl]-N-methylmethanesulfonamide1968975: Inhibition of human SRPK1 using GRSRSRSRSR as substrate in presence of [gamma-33p]-ATP by radiometric hotspot kinase assayic500.0240uM
5-methyl-N-[2-(4-methylpiperazin-1-yl)-5-(trifluoromethyl)phenyl]furan-2-carboxamide1802548: In Vitro Kinase Screening Assay from Article 10.1021/acschembio.6b01048: “Development of Potent, Selective SRPK1 Inhibitors as Potential Topical Therapeutics for Neovascular Eye Disease.”ic500.0310uM
N-methyl-N-[3-[[[2-[6-(1-methylpyrazol-4-yl)-1H-benzimidazol-2-yl]pyrimidin-4-yl]amino]methyl]-2-pyridinyl]methanesulfonamide1968975: Inhibition of human SRPK1 using GRSRSRSRSR as substrate in presence of [gamma-33p]-ATP by radiometric hotspot kinase assayic500.0310uM
N-[3-[[[2-(5-chloro-6-fluoro-1H-benzimidazol-2-yl)pyrimidin-4-yl]amino]methyl]-2-pyridinyl]-N-methylmethanesulfonamide1968975: Inhibition of human SRPK1 using GRSRSRSRSR as substrate in presence of [gamma-33p]-ATP by radiometric hotspot kinase assayic500.0320uM
N-[3-[[[2-(6-chloro-1H-benzimidazol-2-yl)pyrimidin-4-yl]amino]methyl]-2-pyridinyl]-N-methylmethanesulfonamide1968975: Inhibition of human SRPK1 using GRSRSRSRSR as substrate in presence of [gamma-33p]-ATP by radiometric hotspot kinase assayic500.0320uM
N-[3-[[2-(6-chloro-1H-benzimidazol-2-yl)-6-methylpyrrolo[2,3-d]pyrimidin-7-yl]methyl]-2-pyridinyl]-N-methylmethanesulfonamide1968975: Inhibition of human SRPK1 using GRSRSRSRSR as substrate in presence of [gamma-33p]-ATP by radiometric hotspot kinase assayic500.0350uM
N-methyl-N-[3-[[[2-(6-propan-2-yl-1H-benzimidazol-2-yl)pyrimidin-4-yl]amino]methyl]-2-pyridinyl]methanesulfonamide1968975: Inhibition of human SRPK1 using GRSRSRSRSR as substrate in presence of [gamma-33p]-ATP by radiometric hotspot kinase assayic500.0360uM
methyl 2-hydroxy-3-[N-[4-[methyl-[2-(4-methylpiperazin-1-yl)acetyl]amino]phenyl]-C-phenylcarbonimidoyl]-1H-indole-6-carboxylate624903: Binding constant for SRPK1 kinase domainkd0.0370uM
2,3-dithiophen-2-ylbenzo[g]quinoxaline-7-carboxylic acid1188117: Inhibition of SRPK1 kinase (unknown origin)ic500.0400uM
(3Z)-5-[(2,6-dichlorophenyl)methylsulfonyl]-3-[[3,5-dimethyl-4-[(2R)-2-(pyrrolidin-1-ylmethyl)pyrrolidine-1-carbonyl]-1H-pyrrol-2-yl]methylidene]-1H-indol-2-one624903: Binding constant for SRPK1 kinase domainkd0.0410uM
Midostaurin435936: Binding constant for full-length SRPK1kd0.0420uM
N-[3-[[[2-(6-chloro-4-fluoro-1H-benzimidazol-2-yl)pyrimidin-5-yl]amino]methyl]-2-pyridinyl]-N-methylmethanesulfonamide1956444: Inhibition of SRPK1 (unknown origin) using RS peptide as substrate incubated for 120 mins in the presence 33P-ATPic500.0500uM
N-[3-[[[2-(4,6-difluoro-1H-benzimidazol-2-yl)pyrimidin-5-yl]amino]methyl]-2-pyridinyl]-N-methylmethanesulfonamide1956444: Inhibition of SRPK1 (unknown origin) using RS peptide as substrate incubated for 120 mins in the presence 33P-ATPic500.0500uM
N-methyl-N-[3-[[[2-(6-methyl-1H-benzimidazol-2-yl)pyrimidin-5-yl]amino]methyl]-2-pyridinyl]methanesulfonamide1956444: Inhibition of SRPK1 (unknown origin) using RS peptide as substrate incubated for 120 mins in the presence 33P-ATPic500.0500uM
N-[3-[[[6-(6-chloro-1H-benzimidazol-2-yl)-3-pyridinyl]amino]methyl]-2-pyridinyl]-N-methylmethanesulfonamide1956444: Inhibition of SRPK1 (unknown origin) using RS peptide as substrate incubated for 120 mins in the presence 33P-ATPic500.0500uM
N-methyl-N-[3-[[[2-[6-(1-methylpyrazol-4-yl)-1H-benzimidazol-2-yl]pyrimidin-5-yl]amino]methyl]-2-pyridinyl]methanesulfonamide1956444: Inhibition of SRPK1 (unknown origin) using RS peptide as substrate incubated for 120 mins in the presence 33P-ATPic500.0500uM
N-methyl-N-[3-[[[2-(6-propan-2-yl-1H-benzimidazol-2-yl)pyrimidin-5-yl]amino]methyl]-2-pyridinyl]methanesulfonamide1956444: Inhibition of SRPK1 (unknown origin) using RS peptide as substrate incubated for 120 mins in the presence 33P-ATPic500.0500uM
[4-[(E)-2-(1H-indazol-3-yl)ethenyl]phenyl]-piperazin-1-ylmethanone624903: Binding constant for SRPK1 kinase domainkd0.0550uM
N-[3-[[[2-(6-fluoro-1H-benzimidazol-2-yl)pyrimidin-4-yl]amino]methyl]-2-pyridinyl]-N-methylmethanesulfonamide1968975: Inhibition of human SRPK1 using GRSRSRSRSR as substrate in presence of [gamma-33p]-ATP by radiometric hotspot kinase assayic500.0580uM
N-[2-[4-[2-(dimethylamino)ethyl]piperazin-1-yl]-5-(trifluoromethyl)phenyl]-5-pyridin-4-ylfuran-2-carboxamide1802548: In Vitro Kinase Screening Assay from Article 10.1021/acschembio.6b01048: “Development of Potent, Selective SRPK1 Inhibitors as Potential Topical Therapeutics for Neovascular Eye Disease.”ic500.0590uM
N-[3-[[[2-(5-chloro-1-methylbenzimidazol-2-yl)pyrimidin-4-yl]amino]methyl]-2-pyridinyl]-N-methylmethanesulfonamide1968975: Inhibition of human SRPK1 using GRSRSRSRSR as substrate in presence of [gamma-33p]-ATP by radiometric hotspot kinase assayic500.0650uM
N-[3-[[[2-[6-fluoro-5-(4-methylpiperazin-1-yl)-1H-benzimidazol-2-yl]pyrimidin-4-yl]amino]methyl]-2-pyridinyl]-N-methylmethanesulfonamide1968975: Inhibition of human SRPK1 using GRSRSRSRSR as substrate in presence of [gamma-33p]-ATP by radiometric hotspot kinase assayic500.0810uM
N-[4-[4-(4-methylpiperazin-1-yl)-6-[(5-methyl-1H-pyrazol-3-yl)amino]pyrimidin-2-yl]sulfanylphenyl]cyclopropanecarboxamide435936: Binding constant for full-length SRPK1kd0.0820uM
N-[2-piperidin-1-yl-5-(trifluoromethyl)phenyl]pyridine-4-carboxamide1968975: Inhibition of human SRPK1 using GRSRSRSRSR as substrate in presence of [gamma-33p]-ATP by radiometric hotspot kinase assayic500.0830uM
N-[3-[[6-(6-chloro-1H-benzimidazol-2-yl)pyrrolo[3,2-c]pyridin-1-yl]methyl]-2-pyridinyl]-N-methylmethanesulfonamide1968975: Inhibition of human SRPK1 using GRSRSRSRSR as substrate in presence of [gamma-33p]-ATP by radiometric hotspot kinase assayic500.1070uM
N-[(1R,2S)-2-aminocyclohexyl]-4-[6-(1-methylpyrazol-4-yl)pyrazolo[1,5-a]pyrimidin-3-yl]thiophene-2-carboxamide1637138: Inhibition of full-length recombinant human His-tagged SRPK1 expressed in baculovirus expression system by Z’-LYTE assayic500.1400uM
N-[3-[[[2-(6-methoxy-1H-benzimidazol-2-yl)pyrimidin-4-yl]amino]methyl]-2-pyridinyl]-N-methylmethanesulfonamide1968975: Inhibition of human SRPK1 using GRSRSRSRSR as substrate in presence of [gamma-33p]-ATP by radiometric hotspot kinase assayic500.1520uM
Fedratinib624903: Binding constant for SRPK1 kinase domainkd0.1600uM
N-methyl-N-[3-[[[2-(6-methyl-1H-benzimidazol-2-yl)pyrimidin-4-yl]amino]methyl]-2-pyridinyl]methanesulfonamide1968975: Inhibition of human SRPK1 using GRSRSRSRSR as substrate in presence of [gamma-33p]-ATP by radiometric hotspot kinase assayic500.1640uM
Alectinib1553484: Inhibition of SRPK1 (unknown origin) by TR-FRET assayic500.1950uM
Sunitinib435936: Binding constant for full-length SRPK1kd0.2500uM
N-[3-[[[2-(6-cyano-1H-benzimidazol-2-yl)pyrimidin-4-yl]amino]methyl]-2-pyridinyl]-N-methylmethanesulfonamide1968975: Inhibition of human SRPK1 using GRSRSRSRSR as substrate in presence of [gamma-33p]-ATP by radiometric hotspot kinase assayic500.3240uM
N-methyl-N-[3-[[[2-(6-morpholin-4-yl-1H-benzimidazol-2-yl)pyrimidin-4-yl]amino]methyl]-2-pyridinyl]methanesulfonamide1968975: Inhibition of human SRPK1 using GRSRSRSRSR as substrate in presence of [gamma-33p]-ATP by radiometric hotspot kinase assayic500.3570uM
(3Z)-3-(1H-pyrrol-2-ylmethylidene)-1H-indol-2-one389044: Binding affinity to human SRPK1kd0.3610uM
4-amino-5-fluoro-3-[6-(4-methylpiperazin-1-yl)-1H-benzimidazol-2-yl]-1H-quinolin-2-one435936: Binding constant for full-length SRPK1kd0.4200uM
N-[3-[[[2-(1H-benzimidazol-2-yl)pyrimidin-4-yl]amino]methyl]-2-pyridinyl]-N-methylmethanesulfonamide1968975: Inhibition of human SRPK1 using GRSRSRSRSR as substrate in presence of [gamma-33p]-ATP by radiometric hotspot kinase assayic500.4480uM

CTD chemical–gene interactions

52 total (human), top 30 by PubMed support.

ChemicalActions (top 5)PubMed papers
sodium arseniteincreases abundance, increases expression, decreases expression, affects cotreatment3
bisphenol Adecreases expression2
Estradiolaffects cotreatment, increases expression2
7,8-Dihydro-7,8-dihydroxybenzo(a)pyrene 9,10-oxidedecreases expression2
FR900359affects phosphorylation1
2,4,6-tribromophenoldecreases expression1
triphenyl phosphateaffects expression1
alpha-pineneaffects cotreatment, decreases expression, increases oxidation, increases abundance1
arseniteaffects binding, decreases reaction1
manganese chlorideincreases abundance, increases expression, affects cotreatment1
methacrylaldehydeaffects cotreatment, decreases expression, increases oxidation, increases abundance1
beta-methylcholineaffects expression1
di-n-butylphosphoric acidaffects expression1
CGP 52608increases reaction, affects binding1
pentabrominated diphenyl ether 100decreases expression1
hexabrominated diphenyl ether 153decreases expression1
1-(4-(6-bromobenzo(1,3)dioxol-5-yl)-3a,4,5,9b-tetrahydro-3H-cyclopenta(c)quinolin-8-yl)ethanoneincreases phosphorylation1
2-(1H-indazol-4-yl)-6-(4-methanesulfonylpiperazin-1-ylmethyl)-4-morpholin-4-ylthieno(3,2-d)pyrimidinedecreases expression, increases response to substance1
Oxaliplatinincreases expression, affects response to substance1
Resveratroldecreases expression1
Norethindrone Acetateaffects cotreatment, increases expression1
Acroleinaffects cotreatment, decreases expression, increases oxidation, increases abundance1
Air Pollutantsaffects cotreatment, decreases expression, increases abundance, increases oxidation1
Arsenicincreases expression, affects cotreatment, increases abundance1
Benzo(a)pyreneincreases expression, affects cotreatment1
Biological Factorsdecreases activity, increases secretion1
Cadmiumincreases expression1
Caffeinedecreases phosphorylation1
Calcitrioldecreases expression1
Cisplatinaffects localization1

ChEMBL screening assays

374 unique, capped per target: 373 binding, 1 functional

Representative assays (with source publication via chembl_document):

Assay IDTypeDescriptionSource paper
CHEMBL1003338BindingInhibition of SRPK1 at 1 uM relative to controlNovel potent BRAF inhibitors: toward 1 nM compounds through optimization of the central phenyl ring. — J Med Chem
CHEMBL1963724FunctionalPUBCHEM_BIOASSAY: Navigating the Kinome. (Class of assay: other) Panel member name: SRPK1PubChem BioAssay data set

Cellosaurus cell lines

7 cell lines: 5 cancer cell line, 2 hybrid cell line

First 10 cell lines (id-ordered, not curated):

CellosaurusNameCategorySex
CVCL_B7ZLAbcam Raji SRPK1 KOCancer cell lineMale
CVCL_C0AEAbcam THP-1 SRPK1 KOCancer cell lineMale
CVCL_C7C2Abcam PC-3 SRPK1 KOCancer cell lineMale
CVCL_TQ46HAP1 SRPK1 (-) 1Cancer cell lineMale
CVCL_TQ47HAP1 SRPK1 (-) 2Cancer cell lineMale
CVCL_YT53CNE1 SRPK1 KOHybrid cell line
CVCL_YT55CNE1 SRPK1/2 KOHybrid cell line

Clinical trials (associated diseases)

0 trials via MONDO — disease-level, not drug-specific.

No linked Atlas pages yet — the cross-entity mesh grows as the corpus expands.